Results 171 to 180 of about 2,916 (209)

Multicode STBC in Frequency Selective Fading

IEEE GLOBECOM 2007-2007 IEEE Global Telecommunications Conference, 2007
Multicode operation in space-time block coded (STBC) multiple input multiple output (MIMO) systems can provide additional degrees of freedom in code domain to achieve high data rates. In such multicode STBC systems, the receiver experiences code domain interference (CDI) in frequency selective fading.
Saif K. Mohammed, Ananthanarayanan Chockalingam   +1 more
core   +3 more sources

Uplink SCMA with STBC in Fading Channels

2020 IEEE 91st Vehicular Technology Conference (VTC2020-Spring), 2020
Sparse code multiple access (SCMA) is an attractive non-orthogonal multiple access scheme for wireless communications. Meanwhile, space-time block coding (STBC) can achieve high diversity gains in fading channels. This paper proposes an uplink SCMA-STBC with a space-time-based message-passing algorithm (ST-MPA).
Huan-Ying Li, Zi-Jing Liu, Qiyue Yu, Wei Xiang 0001, Fumiyuki Adachi   +4 more
openaire   +2 more sources

Bezout equalization for STBC-MIMO systems

IEEE International Conference on Acoustics Speech and Signal Processing, 2002
Space-Time Blocking Coding (STBC) has become very popular as an efficient diversity creation technique. With extra transmission redundancies introduced, the receiver performance can be significantly improved via STBC. In this paper, we study the signal recovery problem for a physical Multiple-Input-Multiple-Output (MIMO) channel via an inverse FIR ...
Sun-Yuan Kung, Yunnan Wu, Xinying Zhang
openaire   +2 more sources

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Relay Assisted Adaptive MIMO Communication Using STBC, VBLAST, MLSTBC and HYBRID-STBC-VBLAST for MAC

2016 30th International Conference on Advanced Information Networking and Applications Workshops (WAINA), 2016
In this paper, performance of STBC, VBLAST, MLSTBC and Hybrid-STBC-VBLAST is investigated in the presence of rayleigh fading for relay assisted multiple access communication. STBC provides diversity gain but does not provide multiplexing gain. On the other hand, VBLAST provides multiplexing gain but does not provide diversity gain.
M M Kamruzzaman
exaly   +2 more sources

Downlink STBC-GSSK and STBC-UAV Assisted NOMA for 6G and Beyond

2024 33rd International Conference on Computer Communications and Networks (ICCCN)
Anindya Bal, Sumit Chowdhury, Haofan Cai
exaly   +3 more sources

Adaptive Detection for STBCS in IEEE802.11AC

2014 IEEE Intl Conf on High Performance Computing and Communications, 2014 IEEE 6th Intl Symp on Cyberspace Safety and Security, 2014 IEEE 11th Intl Conf on Embedded Software and Syst (HPCC,CSS,ICESS), 2014
An adaptive detection scheme is proposed on the very fast detection algorithm for Space-time block code in IEEE 802.11ac. At first, QR decomposition is applied to the channel matrix for getting an upper triangular matrix and has been achieved the required number of candidate constellation points around the maximum likelihood (ML) points without ...
Debasish Ghose, Smriti Kana Roy, Hung-Ta Pai, Chun-Yi Wei   +3 more
openaire   +1 more source

A Novel Quaternion Design Construction For STBC

2008 IEEE International Conference on Communications, 2008
In this paper, several investigations have been performed for solving the open problem that if small quaternion orthogonal design can be used to build larger one. The so called coordinate interleaved orthogonal designs (CIODs) are generalized into quaternion in the paper, and consequently it introduces a new construction technique for 4 n times 4 m ...
Huanfei Ma 0001, Qinghui Lan, Haibin Kan, Hideki Imai   +3 more
openaire   +1 more source

Complex Linear STBCs with Multiple Rates

2005 2nd International Symposium on Wireless Communication Systems, 2005
Complex linear space-time block codes (STBCs) with multiple rates are investigated. First, the conditions for capacity-lossless STBC existence are derived and we prove that capacity-lossless complex linear STBCs exist if and only if there is one receive antenna. It is also proved that rate-one capacity-lossless complex linear STBCs exist if and only if
Pansop Kim, Keith M. Chugg
openaire   +1 more source

STBC cooperative relay for packet broadcasting

2010 7th International Symposium on Wireless Communication Systems, 2010
In this paper we propose a broadcasting scheme with STBC (space time block codes) cooperative relay in multi-hop cellular network (MCN). In this scheme, base stations (BSs) broadcast the packets to mobile terminals (MTs) and relay stations (RSs), and at the next time slot, RSs which have correctly received the broadcast packets rebroadcast the packets ...
Yueting Hu, Takeo Fujii
openaire   +1 more source

Irregular Multidimensional Constellations for Orthogonal STBCs

2015 IEEE Global Communications Conference (GLOBECOM), 2014
Utilizing multiple antennas at the transmitter and receiver provides higher data rates and better reliability by exploiting spatial diversity. Space-time block codes (STBCs) is a simple approach for using multiple transmit and receive antennas that has been widely employed in standards.
Hossein Khoshnevis, Ian D. Marsland, Halim Yanikomeroglu   +2 more
openaire   +1 more source